<template>
  <div class="login">
    <div class="logo-box">

<!--      <img class="logo-content-img" src="../assets/images/logo-new.jpg" alt=""/>-->

      <div class="login-title-img">
        <img src="../assets/images/login-title.png" alt=""/>
      </div>

      <div class="login-content">
        <img class="login-content-img" src="../assets/images/login-form-logo.png" alt=""/>
        <!--登录表单-->
        <div class="login-content-form">
          <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
            <h2 class="title">用户登录</h2>
            <el-form-item prop="username">
              <el-input
                v-model="loginForm.username"
                type="text"
                auto-complete="off"
                placeholder="账号"
              >
                <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
              </el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input
                v-model="loginForm.password"
                type="password"
                auto-complete="off"
                placeholder="密码"
                @keyup.enter.native="handleLogin"
              >
                <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
              </el-input>
            </el-form-item>
<!--            <el-form-item prop="code" v-if="captchaEnabled">-->
<!--              <el-input-->
<!--                v-model="loginForm.code"-->
<!--                auto-complete="off"-->
<!--                placeholder="验证码"-->
<!--                style="width: 63%"-->
<!--                @keyup.enter.native="handleLogin"-->
<!--              >-->
<!--                <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />-->
<!--              </el-input>-->
<!--              <div class="login-code">-->
<!--                <img :src="codeUrl" @click="getCode" class="login-code-img"/>-->
<!--              </div>-->
<!--            </el-form-item>-->
            <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
            <el-form-item style="width:100%;">
              <el-button
                :loading="loading"
                size="medium"
                type="primary"
                style="width:100%;"
                @click.native.prevent="handleLogin"
              >
                <span v-if="!loading">立 即 登 录</span>
                <span v-else>登 录 中...</span>
              </el-button>
<!--              <div style="float: right;" v-if="register">-->
<!--                <router-link class="link-type" :to="'/register'">立即注册</router-link>-->
<!--              </div>-->
            </el-form-item>
          </el-form>
        </div>
      </div>

      <!--  底部  -->
      <div class="el-login-footer">
        <span>技术支持：唐山惠唐物联科技有限公司</span>
        <!--      <span>Copyright © 2018-2024 Tangshan Huitang IoT Technology All Rights Reserved.</span>-->
      </div>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-bg.png");
}

.logo-box{
  display: flex;
  flex-direction: column; /* 列布局 */
  justify-content: center;
  text-align: center;
  margin: 0 auto;
  height: 100%;
  width: 750px;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  font-weight: bold;
  color: #444444;
  padding-top: 15px;
}

.login-form {
  border-radius: 15px;
  width: 400px;
  height: 100%;
  margin-left: auto;
  margin-top: 50px;
  padding: 0 40px 0 30px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.logo-content-img{
  width: 150px;
  height: 150px;
  position: absolute;
  margin-left: -450px;
  margin-top: -650px;
  border-radius: 15px;
}


.login-title-img{
  font-size: 35px;
  text-align: center;
  margin-bottom: 25px;
  margin-top: 25px;
  font-weight: 300;
}

.login-content{
  border-radius: 15px;
  background: #fff;
  border-top: 0;
  color: #666;
  width: 100%;
  height: 410px;
  display: flex;
  margin: 40px 0;

  .login-content-img{
    height: 450px;
    margin-left: -50px;
    margin-top: -20px;
    float: left;
    z-index: 99;

  }
  .login-content-form{
    width: 100%;
    float: left;
    z-index: 0;
    border-radius: 15px;
  }
}


.el-login-footer {
  height: 40px;
  line-height: 40px;
  width: 100%;
  text-align: center;
  color: #D6D7DD !important;
  font-size: 14px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
